JP2600616Y2 - Reinforcing wire mesh for concrete structures - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reinforcing steel wire mesh for a concrete structure used as a reinforcing material for a concrete structure such as a concrete floor.

[0002]

2. Description of the Related Art Conventionally, a construction method using a reinforcing steel wire mesh for a concrete structure such as a floor, for example, as shown in FIG.
The reinforcing wire mesh 70 is disposed on the
With the tip of the crowbar 72 inserted under the reinforcing bar 73, the bar 70 is lifted upward by the principle of leverage, and then the prism 75 is placed under the reinforcing bar 70 from the mesh of the reinforcing bar 70. The reinforcing wire mesh 70 was placed on the prism 75, the reinforcing wire mesh 70 was provided at a predetermined height from the mold 71, and then concrete was poured onto the mold 71. The prism 75 is an example of a spacer, and is formed by forming mortar into a prism. As other spacers, there are various types such as those formed by assembling a reinforcing bar like a pedestal. In addition, as shown in FIG. 4, when the floor or the like is constructed using a large-mesh rebar wire mesh 76, the feet of the worker 74 are put into the mesh to become a middle waist, and the rebar 77 is directly grasped by hand. The wire mesh 76 is lifted, and the prism 75 is provided below the reinforcing steel wire mesh 76 so as to float from the mold 71, and the mold 7
Concrete was poured on top of No. 1. Further, another method of constructing the floor or the like is to dispose a plurality of spacers at predetermined positions of the formwork in advance, and to provide a reinforcing wire mesh on the spacers,
The concrete was poured into the formwork.

[0003]

However, the reinforcing wire meshes 70 and 76 used for constructing the floor and the like shown in FIGS.
In the method of disposing the reinforcing steel wire meshes 70 and 76 with the crowbar 72 or by directly grasping and lifting them with the hand, a great deal of labor is required and the prism The body 75 was provided. Particularly, in the former case, since the bur 72 is used, the mold 71 may be damaged. Further, in the method of constructing the floor or the like using a reinforcing steel wire mesh (not shown), when moving to a predetermined position with the reinforcing steel wire mesh, there is a risk of tripping over a spacer and falling down.
It was a very dangerous operation. The present invention has been made in view of such circumstances, and it is possible to safely arrange a reinforcing steel wire mesh used inside a concrete structure at a predetermined height from a formwork without requiring labor, and It is another object of the present invention to provide a reinforcing steel wire mesh for a concrete structure capable of stacking the reinforcing steel wire mesh in a plurality of stages.

[0004]

According to the present invention, there is provided a semiconductor device comprising:
The reinforcing steel wire mesh for a concrete structure according to the present invention crosses a plurality of reinforcing steels, and a reinforcing steel wire mesh used for a concrete structure formed by fixing the crossed portions, and is fixed to the reinforcing steel wire mesh, and the reinforcing steel wire mesh is set at a predetermined height. A reinforcing-reinforcing wire mesh for a concrete structure having a supporting member for supporting, the bottom portion (lower portion) of the supporting member has a plurality of lower reinforcing bars of a predetermined length arranged in a horizontal state.

[0005]

According to the first aspect of the present invention, in the construction of a concrete floor or the like, for example, in the construction of a concrete floor or the like, the concrete reinforcing steel wire mesh is provided on a formwork. The support member fixed to the reinforcing wire mesh supports the reinforcing wire mesh at a predetermined height from the formwork, and reduces the labor for arranging the spacer under the reinforcing wire mesh. When the support members are stacked, the support members have a plurality of lower reinforcing bars in a horizontal state at the bottom, so that they can be stacked as they are.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings to facilitate understanding of the present invention. FIG. 1 is a partially omitted perspective view of a reinforcing steel wire mesh for a concrete structure according to a first embodiment of the present invention. FIG.
As shown in FIG. 1, a reinforcing steel wire mesh 10 for a concrete structure according to a first embodiment of the present invention includes a reinforcing steel wire mesh 11 and a corrugated reinforcing wire spacer 12 which is an example of a support member. Reinforcing wire mesh 11 is formed by arranging a plurality of horizontal reinforcing bars 13, arranging vertical reinforcing bars 14 on the horizontal reinforcing bars 13, and welding and fixing the intersections. The corrugated reinforcing bar spacer 12 uses a reinforcing bar that is thinner than the horizontal reinforcing bar 13 and the vertical reinforcing bar 14, and the lower reinforcing bar 15
One upper reinforcing bar 16 is provided above the middle of the lower reinforcing bars 15 and two corrugated reinforcing bars 17 are used.
And the upper reinforcing bar 16 are connected by welding. The horizontal reinforcing bar 13 of the reinforcing steel wire mesh 11 is provided with a corrugated reinforcing bar spacer 12 at a lower portion thereof by welding an upper portion thereof.

Next, a reinforcing steel wire mesh 1 for a concrete structure
A method of constructing a concrete structure by using 0 will be described. For example, in order to build a concrete structure such as a concrete floor, a reinforcing steel wire mesh 10 for a concrete structure is provided on a formwork, and then concrete is poured into the formwork. In this step, the reinforcing steel wire mesh 10 for the concrete structure disposed on the formwork is replaced with the corrugated reinforcing wire spacer 12 at the time when the steel wire mesh 10 is provided on the formwork.
At a predetermined height. Therefore, when constructing a concrete structure such as a floor using the reinforcing steel wire mesh 10 for a concrete structure, it is necessary to provide a spacer while taking into consideration the arrangement position of the spacer of the formwork as in the conventional example, and to provide the reinforcing steel wire mesh on the spacer. In addition, the number of work steps is reduced, and the labor required for arranging the reinforcing steel wire mesh can be reduced. In addition, there is no danger of tripping over while holding the reinforcing wire mesh on the spacer, and the safety of work can be ensured.

Next, a description will be given of a reinforcing steel wire mesh for a concrete structure according to a second embodiment of the present invention. FIG. 2 is a perspective view of a reinforcing steel wire mesh for a concrete structure according to a second embodiment of the present invention. As shown in FIG. 2, the reinforcing steel wire mesh 30 for a concrete structure is provided with an upper reinforcing steel wire mesh 31 and a lower reinforcing steel wire mesh 32 at predetermined intervals, and is provided between the upper reinforcing steel wire mesh 31 and the lower reinforcing steel wire mesh 32, and further, a lower reinforcing steel wire mesh 32. A plurality of corrugated reinforcing bars 12 shown in FIG. The reinforcing steel wire mesh 30 for a concrete structure is used to maintain the strength of a thick concrete floor, for example. And the corrugated reinforcing bar spacer 12
Is the same as that shown in FIG. Upper rebar wire mesh 3
1 and the lower reinforcing wire mesh 32 are formed by increasing the number of horizontal reinforcing bars 13 of the reinforcing wire mesh 11 shown in FIG.

Next, a reinforcing wire mesh 3 for concrete structures
The relationship between the upper rebar wire mesh 31, the lower rebar wire mesh 32, and the corrugated rebar spacer 12 will be sequentially described below with respect to the lower portion of the lower rebar wire mesh 32 and the middle of the lower rebar wire mesh 32 and the upper rebar wire mesh 31. A predetermined number of corrugated reinforcing bars 12 are fixed below the lower reinforcing wire mesh 32. The fixing method is such that the corrugated reinforcing bar 1 is provided below the horizontal reinforcing bar 13 of the lower reinforcing wire mesh 32.
The welding is performed by welding an intermediate portion of the upper reinforcing bar 16 of the second steel sheet. Lower rebar wire mesh 3
2 and the upper rebar wire mesh 31, the lower rebar wire mesh 32
The lower reinforcing bar 15 of the corrugated reinforcing bar 12 is transferred to the upper portion of the two horizontal reinforcing bars 13 forming the corrugated reinforcing bar 13 and the contact portion is fixed by welding. It is welded and fixed to the lower part of the horizontal reinforcing bar 13 of the reinforcing bar wire mesh 31. Accordingly, since the reinforcing steel wire mesh 30 for the concrete structure has the corrugated reinforcing steel spacer 12 interposed between the lower reinforcing steel wire mesh 32 and the upper reinforcing steel wire mesh 31 and the lower reinforcing steel wire mesh 32, the strength of the concrete thick floor or the like is reduced. Can be kept enough. A specific method of use is the same as that of the reinforcing steel wire mesh 10 for a concrete structure shown in FIG. 1, and a description thereof will be omitted.

[0010] The vertical reinforcing bar 1 forming each of the reinforcing bar wire mesh 11, upper reinforcing wire wire mesh 31, and lower reinforcing wire wire mesh 32 shown in FIGS.
The four reinforcing bars 4 and the horizontal reinforcing bars 13 are fixed by welding. However, the reinforcing bars 4 and the horizontal reinforcing bars 13 may be bound together by using a wire or the like.
Alternatively, the lower reinforcing steel wire mesh 32 is fixed by welding, but may be fixed to each other by using wires or the like in a manner similar to the method of fixing the horizontal reinforcing bar 13 and the vertical reinforcing bar 14.

[0011]

According to the reinforcing wire mesh for concrete structures of the present invention, since the supporting member is fixed to the reinforcing wire mesh, if the reinforcing wire mesh for concrete structures is provided, the supporting member connects the reinforcing wire mesh. Since it is supported at a predetermined height, the labor for providing the spacer can be reduced. In addition, if the reinforcing structure wire mesh for the concrete structure is used, like a reinforcing wire mesh in which the support members are not fixed,
It is possible to prevent a danger of tripping over the spacer provided beforehand under the reinforcing wire mesh, holding the reinforcing wire mesh, etc., and ensuring safe work. Since the bottom of the support member has a plurality of lower reinforcing bars arranged in a horizontal state, it is possible to stack the required number of reinforcing bars in accordance with the thickness of the floor of the concrete structure.

[Brief description of the drawings]

FIG. 1 is a partially omitted perspective view of a reinforcing steel wire mesh for a concrete structure according to a first embodiment of the present invention.

FIG. 2 is a partially omitted perspective view of a reinforcing steel wire mesh for a concrete structure according to a second embodiment of the present invention.

FIG. 3 is an explanatory view showing a conventional method of arranging a rebar metal mesh having a small mesh on a formwork.

FIG. 4 is an explanatory view showing a conventional method of arranging a rebar metal mesh having a large mesh on a formwork.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Reinforcing wire mesh for concrete structures 11 Reinforcing wire mesh 12 Corrugated reinforcing bar spacer 13 Horizontal reinforcing bar 14 Vertical reinforcing bar 15 Lower reinforcing bar 16 Upper reinforcing bar 17 Corrugated reinforcing bar 30 Reinforcing wire mesh for concrete building 31 Upper reinforcing bar wire mesh 32 Lower reinforcing wire mesh

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-49-76313 (JP, A) JP-A-60-246926 (JP, A) Fully open 1984-59,9831 (JP, U) Really open 1979 196715 (JP, U) Jikken Sho 47-7479 (JP, Y1) Tokuhyo Sho 63-500808 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) E04C 5/01-5 / 065

Claims (1)

(57) [Scope of request for utility model registration] 1. A reinforcing wire mesh used for a concrete structure formed by intersecting a plurality of rebars and fixing the intersecting portions, and a support member fixed to the reinforcing wire mesh and supporting the rebar wire mesh at a predetermined height. A reinforcing steel wire mesh for a concrete structure, comprising: a plurality of lower reinforcing wires having a predetermined length arranged in a horizontal state at a bottom portion of the support member.